Howdy Aunty,
Heard you and Uncle Wilbur were in Kansas recently. I bet you saw some nice corn, pigs and cows. Speaking of cows, you asked me something `bout Milk the other day. To address your first question, “how does milk go sour?”. MIlk goes sour because it contains a sugar called lactose. Some bacteria live to make lactose react with oxygen to make lactic acid. When milk becomes warm, these bacteria grow faster. The faster these bacteria grow, the more they react with oxygen, the more lactic acid is created and the faster the milk goes sour. This leads into the second part of your question, why does milk thicken when it sours. The answer to that is the same as your first question, it's the same acidification process, but as more acid
Heard you and Uncle Wilbur were in Kansas recently. I bet you saw some nice corn, pigs and cows. Speaking of cows, you asked me something `bout Milk the other day. To address your first question, “how does milk go sour?”. MIlk goes sour because it contains a sugar called lactose. Some bacteria live to make lactose react with oxygen to make lactic acid. When milk becomes warm, these bacteria grow faster. The faster these bacteria grow, the more they react with oxygen, the more lactic acid is created and the faster the milk goes sour. This leads into the second part of your question, why does milk thicken when it sours. The answer to that is the same as your first question, it's the same acidification process, but as more acid